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Journal of the Korean Chemical Society (JKCS)

ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 47, Number 1
JKCSEZ 47(1)
February 20, 2003 

 
Title
Two Biophenolic Glycosides from Portulaca oleracea

쇠비름에서 분리된 2개의 Biophenolic Glycosides
Author
Youngwan Seo, Jongheon Shin, Burm-Jong Lee, Dong Seok Lee

서영완, 신종헌, 이범종, 이동석
Keywords
쇠비름, 페놀 글리코시드, 황산화 활성, Portulaca oleracea, Biophenolic Glycosides, Antioxidant Effect
Abstract
우리나라에 널리 분포하며 오래 동안 약용으로 사용되어 온 쇠비름으로부터 페놀 글리코시드인 3-hydroxy-1(2-hydroxyethyl)phenyl-4-O-β-D-glucopyranoside(1)과 2-(3,4-dihydroxyphenyl)ethyl-O-β-D-glucopyranoside (2)를 칼럼 크로마토그래피 및 역상 HPLC로 분리하였으며, NOESY, HMQC, HMBC와 같은 이차원적인 NMR 분광실험에 의해서 이 물질들의 13C NMR 분광 데이터 값의 지정이 수정되었다. DPPH를 이용하여 이 물질들의 항산화 활성을 측정한 결과 주목할 만한 활성을 나타내었다.

From Portulaca oleracea which is widely distributed in Korea and has long been used as a folk medicine, two biophenolic glycosides, 3-hydroxy-1-(2-hydroxyethyl)phenyl-4-O-b-D-glucopyranoside (1) and 2-(3,4-dihydroxyphenyl) ethyl-O-b-D-glucopyranoside (2) were isolated using column chromatography and reversed-phase HPLC. 13C NMR spectral assignment for these compounds was revised by the extensive 2-D NMR experiments such as NOESY, HMQC, and HMBC. These compounds showed a considerable antioxidant effect in DPPH assay system.

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